/// <reference types="node" />
import { C2XWebExtensionConnector, C2XWebExtensionFeatures, WebExtensionPostPayload, WebExtensionSignBytesPayload, WebExtensionSignPayload, WebExtensionStates, WebExtensionTxResult } from '@c2x/web-extension-interface';
import { CreateTxOptions } from '@xpla/xpla.js';
import { Observer, Subscribable } from 'rxjs';
export declare class LegacyExtensionConnector implements C2XWebExtensionConnector {
    private identifier;
    private _states;
    private _extension;
    private hostWindow;
    private statesSubscription;
    supportFeatures(): C2XWebExtensionFeatures[];
    constructor(identifier: string);
    open: (hostWindow: Window, statesObserver: Observer<WebExtensionStates>) => void;
    close: () => void;
    requestApproval: () => void;
    refetchStates: () => void;
    post: (xplaAddress: string, tx: CreateTxOptions) => Subscribable<WebExtensionTxResult<WebExtensionPostPayload>>;
    sign: (xplaAddress: string, tx: CreateTxOptions) => Subscribable<WebExtensionTxResult<WebExtensionSignPayload>>;
    signBytes: (xplaAddress: string, bytes: Buffer) => Subscribable<WebExtensionTxResult<WebExtensionSignBytesPayload>>;
    hasCW20Tokens: () => never;
    addCW20Tokens: () => never;
    hasNetwork: () => never;
    addNetwork: () => never;
    recheckStates: () => Promise<void>;
}